Product Overview: The NA 6902 Needle Roller Bearing
The NA 6902 is a high-precision needle roller bearing, featuring an inner ring and a machined outer ring. With its key dimensions of 15x28x16mm (15mm bore, 28mm outer diameter, and 16mm width), this bearing is engineered to handle high radial loads within a remarkably compact design. As a vital component in our Needle Roller Bearings category, the NA 6902 is part of the esteemed NA Series of Machined Ring Bearings. Its design, which includes a cage to guide the rollers, makes it suitable for applications requiring high rotational speeds and rigidity. The presence of a separable inner ring allows for versatile mounting options, especially on shafts that are not hardened and ground.
Key Features of the NA 6902 Bearing
- High Radial Load Capacity: Utilizes line contact between rollers and raceways to support significant radial forces.
- Compact and Space-Saving: Its small cross-sectional height is ideal for applications where radial space is limited.
- Machined Outer Ring: Provides high rigidity and precision, ensuring stable performance under heavy loads.
- Includes Inner Ring: The 'NA' designation indicates that it comes with a separable inner ring, enabling its use on standard commercial shafts.
- Cage-Guided Rollers: The cage ensures uniform roller spacing and guidance, which reduces friction, minimizes heat generation, and allows for higher speed capabilities.
- Precision Engineering: Manufactured to strict tolerances for reliable and consistent operation in demanding industrial environments.
Common Applications of NA 6902 Bearings
- Automotive Transmissions: Used in gear sets, planetary gears, and shafts where space is tight and loads are high.
- Industrial Gearboxes: Provides robust support for gears and shafts, ensuring efficient power transmission.
- Power Tools: Essential in drills, sanders, and other handheld equipment for compact, high-speed rotational support.
- Two-Stroke Engines: Commonly found in connecting rod and crankshaft applications.
- Pumps and Compressors: Supports rotating shafts, contributing to the reliability and efficiency of the equipment.
- Textile and Printing Machinery: Ensures smooth and precise movement of rollers and other critical components.
- Material Handling Equipment: Used in conveyor rollers and lift mechanisms for durable and reliable operation.
Benefits of Using the NA 6902 Bearing
- Enhanced Equipment Performance: The high rigidity and load capacity contribute to improved machinery precision and output.
- Increased Service Life: Quality materials and design reduce wear and tear, leading to longer operational life and fewer replacements.
- Versatile Installation: The separable inner ring simplifies assembly and allows for use on a wider variety of shaft materials.
- Improved Efficiency: Low frictional characteristics, thanks to the cage design, help reduce energy consumption and operational temperatures.
- Cost-Effective Solution: Offers a high-performance solution for compact designs, potentially reducing the overall size and cost of the machinery.
- Reliability in Demanding Conditions: Engineered to perform consistently under high speeds and heavy radial loads, reducing the risk of unexpected downtime.
